Boot for hydraulic, hydropneumatic or pneumatic...

Details Boot for hydraulic, hydropneumatic or pneumatic... Boot for hydraulic, hydropneumatic or pneumatic...

2005-07-14

2008-08-26

Siconolfi, Robert A. (Department: 3683)

Brakes

Internal-resistance motion retarder

Including protective shield for retarder

Reexamination Certificate

active

07416064

ABSTRACT:
A boot for a hydraulic, hydropneumatic or pneumatic piston-cylinder unit, in particular for vibration dampers or spring struts for vehicles, covers a portion of a piston rod that projects from the cylinder of the piston-cylinder unit. To protect against dirt and/or damage, the boot is arranged between the end of the piston rod and the cylinder. The interior space of the boot undergoes a change in volume due to the relative movement of the piston rod and cylinder with respect to one another. At least one flow connection is provided which leads to the interior space of the boot and allows for air flow in and/or out of the interior space. The at least one flow connection is at least partly covered by an area of the boot.

REFERENCES:
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patent: 5472072 (1995-12-01), Bumgarner
patent: 6282928 (2001-09-01), Fukumoto et al.
patent: 6460665 (2002-10-01), Gotz et al.
patent: 6932356 (2005-08-01), Gloaguen
patent: 324 144 (1975-08-01), None
patent: 102 00 608 (2002-08-01), None
patent: 1384012 (1975-02-01), None

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